As proven in the seminal paper by Stoker, B
Indeed, those links I supplied in my original comment were to that effect.
moral issues - is a clone of you sentient
Definitely an interesting issue, but one I tried to head off by writing "brainless clone" in my original comment. I guess there would be moral questions about how one could create a clone without a brain. The easiest would be to interfere with the fetus to cause brain death, which does introduce the moral quandary.
Personally, I would say that a clone with its brain intact should be considered it's own person. A clone would essentially be your identical twin, just a different age. It would not be ok to kill off your twin, even if they have a goatee :-)
My wife's grandmother is still hanging on at 96 and is completely batshit. She's stated that she enjoys this as everything is always new and interesting even if she heard it 30 minutes ago.
I don't think the transfer will necessarily make your brain young and fresh again, but it might have unexpected positive effects:
http://www.telegraph.co.uk/health/9615779/Transfusion-of-you... http://www.sciencedaily.com/releases/2013/03/130325093659.ht...